[CmdletBinding()]
Param
(

	[Parameter(Mandatory = $true)]
	[URI]$uri,

	# Delete snapshots after the specified days.
	[Parameter(Mandatory = $true)]
	[int]$removeOlderThan = 100,

	[Parameter()]
	[string]$username = "",

	[Parameter()]
	[string]$password = ""

)

# Set credentials
if ($username -eq "")
{
	$credentials = Get-Credential
}
else
{
	$credentials = New-Object -TypeName System.Management.Automation.PSCredential -ArgumentList $username, (ConvertTo-SecureString -String $password -AsPlainText -Force)
}

# Connect to Liquit.
$context = Connect-LiquitWorkspace -URI $uri -Credential $credentials;

# Get all packages.
$packages = Get-LiquitPackage;

# Remove after x number of days.
$removeAfter = [DateTime]::Today.AddDays(-$removeOlderThan);



# Loop through the packages.
foreach ($package in $packages) {

	# Get all snapshots.
	$snapshots = $package | Get-LiquitPackageSnapshot

	# Loop through the snapshots.
	foreach ($snapshot in $snapshots) {

		# Skip active snapshots and sandboxes.
		if (($snapshot.Type -eq "Development") -or ($snapshot.Type -eq "Test") -or ($snapshot.Type -eq "Acceptance") -or ($snapshot.Type -eq "Production")) {
				continue;
		}

		# Verify age.
		if ($removeAfter -le $snapshot.CreatedAt) {
				continue;
		}

		Write-Host "Removing snapshot on package ""$($package.Name)"" with name ""$($snapshot.Name)""."
        try
        {
		# Remove snapshot.
		$snapshot | Remove-LiquitPackageSnapshot 
        }
        catch
        {
            if (($_.Exception).Code -eq "Authorization_RequestDenied"){
                Write-Host "Insufficient privileges to delete the snapshot on package " "$($package.Name)"" with name ""$($snapshot.Name)""."
            }
        }
        

	}

}